Overview

Amazon has rolled out a significant change to how it collects and validates FBA item package dimensions from sellers with a registered business address in Germany. Going forward, Amazon will use certified dimensions provided by eligible sellers to calculate FBA fees, aligning with a broader FBA item package dimensions certification policy. Sellers who fail to verify or update their certified dimensions by the end of 2025 will have their existing dimensions automatically treated as certified, which could have direct implications for fee calculations.

Key Points

• Certified dimensions now required — Amazon is shifting to a system where package dimensions submitted by German-based sellers must be certified using compliant measurement devices that meet EU standards, such as a standard tape measure
• Fee calculations tied to certified data — FBA fees for local fulfillment and cross-border shipments between the UK and the EU will now be calculated based on an item's certified dimensions rather than previously self-reported figures
• Validation and override process — Amazon will actively validate the dimensions sellers provide, and if discrepancies are found, Amazon will substitute its own certified measurements, which could result in higher or lower fees depending on the variance
• Deadline of December 31, 2025 — Sellers who do not verify or update their dimensions by this date will have their current dimensions locked in as certified, removing the opportunity to correct potential inaccuracies

How the Certification Process Works

• Email notification — Eligible sellers should have already received an email from Amazon requesting that they verify their existing item package dimensions or submit updated certified measurements
• EU-compliant measurement devices — Dimensions must be taken using a device that complies with EU measurement standards, such as common tape measures and calibrated rulers
• Consistency required — Sellers should ensure their measurement methods are consistent and accurate, as Amazon will cross-check submitted dimensions against its own data